Malicious PDF — malware analysis report

Static analysis result for SHA-256 457831991dd44fe2…

MALICIOUS

PDF

74.2 KB Created: 2021-02-05 13:54:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 040d7b1bd3b8fe6fc8b931825f9165f1 SHA-1: b1db40b8da1bdf7c7fc3866bb829a1d9e7075a66 SHA-256: 457831991dd44fe2fe43f79e9adf2871be8b34e0a007b1acaa7f64f6e49a4f40
136 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged by a machine learning classifier and ClamAV as malicious. It contains an embedded URL and heuristics indicate it attempts to trick the user into executing commands via clipboard manipulation. The document's content, though heavily obfuscated, suggests a lure related to an 'address icon image', likely a pretext for a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://leonvi.ru/aws?utm_term=address+icon+image PDF link annotation
    • https://cdn.sqhk.co/vosiwuli/hji9Vgg/73538171126.pdfIn PDF document text
    • https://cdn.sqhk.co/nakunadubux/i4gf6SF/99766549065.pdfIn PDF document text
    • https://cdn.sqhk.co/melipetoluf/jgcLjjt/91203986864.pdfIn PDF document text
    • https://cdn.sqhk.co/sixitigoxeto/9iivgjj/live_weather_radar_map_uk.pdfIn PDF document text
    • http://muzoc.xyz/bafosabugy5.pdfIn PDF document text
    • https://cdn.sqhk.co/takularozo/ifHAGhe/ruzzle_free_download_iphone.pdfIn PDF document text
    • https://cdn.sqhk.co/jozazixefuf/hfwDhcn/printable_cake_pictures_near_me.pdfIn PDF document text
    • http://legendnat.space/linasopitu3rkwe.pdfIn PDF document text
    • https://cdn.sqhk.co/wogefosa/ggcOSQL/pakilulati.pdfIn PDF document text
    • https://cdn.sqhk.co/wutalididow/Zhg1jgi/only_one_kanye_west_game.pdfIn PDF document text
    • http://bilkan.fun/gofugozujix0xofr.pdfIn PDF document text
    • http://converstarget.ru/turn_off_emergency_alerts_android_htcekekw.pdfIn PDF document text
    • https://cdn.sqhk.co/fugolamudara/XLIowhj/wolf_live_audio_shows_group_chat.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wovugi/33672601076.pdfIn PDF document text
    • https://s3.amazonaws.com/paropabaru/1819550249.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e3bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3BB 5216 bytes
SHA-256: 851c85b491733370d8faf15dd2d3890172bf96f70419897981224c97b4d9f8be
font_01_sfnt_off0000f55e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF55E 11172 bytes
SHA-256: 59fdd44d99f18e756a121efc0578fa921ad25c2593456b69dba851e6863ccce9

Open this report in the interactive analyzer, or submit your own file for analysis.